root / trunk / web / dojo / dojox / encoding / digests / SHA1.js
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| 1 | 9 | andrej.cim | /*
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| 2 | Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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| 3 | Available via Academic Free License >= 2.1 OR the modified BSD license.
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| 4 | see: http://dojotoolkit.org/license for details
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| 5 | */
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| 6 | |||
| 7 | |||
| 8 | if(!dojo._hasResource["dojox.encoding.digests.SHA1"]){ |
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| 9 | dojo._hasResource["dojox.encoding.digests.SHA1"]=true; |
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| 10 | dojo.provide("dojox.encoding.digests.SHA1");
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| 11 | dojo.require("dojox.encoding.digests._base");
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| 12 | (function(){
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| 13 | var _1=dojox.encoding.digests;
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| 14 | var _2=8,_3=(1<<_2)-1; |
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| 15 | function R(n,c){ |
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| 16 | return (n<<c)|(n>>>(32-c)); |
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| 17 | }; |
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| 18 | function FT(t,b,c,d){ |
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| 19 | if(t<20){ |
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| 20 | return (b&c)|((~b)&d);
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| 21 | } |
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| 22 | if(t<40){ |
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| 23 | return b^c^d;
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| 24 | } |
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| 25 | if(t<60){ |
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| 26 | return (b&c)|(b&d)|(c&d);
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| 27 | } |
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| 28 | return b^c^d;
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| 29 | }; |
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| 30 | function KT(t){ |
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| 31 | return (t<20)?1518500249:(t<40)?1859775393:(t<60)?-1894007588:-899497514; |
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| 32 | }; |
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| 33 | function _4(x,_5){ |
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| 34 | x[_5>>5]|=128<<(24-_5%32); |
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| 35 | x[((_5+64>>9)<<4)+15]=_5; |
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| 36 | var w=new Array(80),a=1732584193,b=-271733879,c=-1732584194,d=271733878,e=-1009589776; |
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| 37 | for(var i=0;i<x.length;i+=16){ |
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| 38 | var _6=a,_7=b,_8=c,_9=d,_a=e;
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| 39 | for(var j=0;j<80;j++){ |
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| 40 | if(j<16){ |
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| 41 | w[j]=x[i+j]; |
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| 42 | }else{
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| 43 | w[j]=R(w[j-3]^w[j-8]^w[j-14]^w[j-16],1); |
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| 44 | } |
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| 45 | var t=_1.addWords(_1.addWords(R(a,5),FT(j,b,c,d)),_1.addWords(_1.addWords(e,w[j]),KT(j))); |
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| 46 | e=d; |
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| 47 | d=c; |
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| 48 | c=R(b,30);
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| 49 | b=a; |
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| 50 | a=t; |
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| 51 | } |
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| 52 | a=_1.addWords(a,_6); |
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| 53 | b=_1.addWords(b,_7); |
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| 54 | c=_1.addWords(c,_8); |
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| 55 | d=_1.addWords(d,_9); |
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| 56 | e=_1.addWords(e,_a); |
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| 57 | } |
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| 58 | return [a,b,c,d,e];
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| 59 | }; |
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| 60 | function _b(_c,_d){ |
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| 61 | var wa=_e(_d);
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| 62 | if(wa.length>16){ |
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| 63 | wa=_4(wa,_d.length*_2); |
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| 64 | } |
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| 65 | var _f=new Array(16),_10=new Array(16); |
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| 66 | for(var i=0;i<16;i++){ |
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| 67 | _f[i]=wa[i]^909522486;
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| 68 | _10[i]=wa[i]^1549556828;
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| 69 | } |
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| 70 | var _11=_4(_f.concat(_e(_c)),512+_c.length*_2); |
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| 71 | return _4(_10.concat(_11),512+160); |
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| 72 | }; |
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| 73 | function _e(s){ |
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| 74 | var wa=[];
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| 75 | for(var i=0,l=s.length*_2;i<l;i+=_2){ |
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| 76 | wa[i>>5]|=(s.charCodeAt(i/_2)&_3)<<(32-_2-i%32); |
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| 77 | } |
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| 78 | return wa;
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| 79 | }; |
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| 80 | function _12(wa){ |
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| 81 | var h="0123456789abcdef",s=[]; |
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| 82 | for(var i=0,l=wa.length*4;i<l;i++){ |
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| 83 | s.push(h.charAt((wa[i>>2]>>((3-i%4)*8+4))&15),h.charAt((wa[i>>2]>>((3-i%4)*8))&15)); |
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| 84 | } |
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| 85 | return s.join(""); |
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| 86 | }; |
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| 87 | function _13(wa){ |
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| 88 | var s=[];
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| 89 | for(var i=0,l=wa.length*32;i<l;i+=_2){ |
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| 90 | s.push(String.fromCharCode((wa[i>>5]>>>(32-_2-i%32))&_3)); |
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| 91 | } |
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| 92 | return s.join(""); |
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| 93 | }; |
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| 94 | function _14(wa){ |
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| 95 | var p="=",tab="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",s=[]; |
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| 96 | for(var i=0,l=wa.length*4;i<l;i+=3){ |
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| 97 | var t=(((wa[i>>2]>>8*(3-i%4))&255)<<16)|(((wa[i+1>>2]>>8*(3-(i+1)%4))&255)<<8)|((wa[i+2>>2]>>8*(3-(i+2)%4))&255); |
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| 98 | for(var j=0;j<4;j++){ |
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| 99 | if(i*8+j*6>wa.length*32){ |
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| 100 | s.push(p); |
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| 101 | }else{
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| 102 | s.push(tab.charAt((t>>6*(3-j))&63)); |
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| 103 | } |
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| 104 | } |
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| 105 | } |
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| 106 | return s.join(""); |
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| 107 | }; |
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| 108 | _1.SHA1=function(_15,_16){ |
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| 109 | var out=_16||_1.outputTypes.Base64;
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| 110 | var wa=_4(_e(_15),_15.length*_2);
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| 111 | switch(out){
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| 112 | case _1.outputTypes.Raw:
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| 113 | return wa;
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| 114 | case _1.outputTypes.Hex:
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| 115 | return _12(wa);
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| 116 | case _1.outputTypes.String:
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| 117 | return _13(wa);
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| 118 | default:
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| 119 | return _14(wa);
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| 120 | } |
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| 121 | }; |
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| 122 | _1.SHA1._hmac=function(_17,key,_18){ |
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| 123 | var out=_18||_1.outputTypes.Base64;
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| 124 | var wa=_b(_17,key);
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| 125 | switch(out){
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| 126 | case _1.outputTypes.Raw:
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| 127 | return wa;
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| 128 | case _1.outputTypes.Hex:
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| 129 | return _12(wa);
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| 130 | case _1.outputTypes.String:
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| 131 | return _13(wa);
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| 132 | default:
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| 133 | return _14(wa);
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| 134 | } |
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| 135 | }; |
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| 136 | })(); |
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| 137 | } |